黑龙江铜山地区遥感蚀变信息提取及成矿远景区圈定

Extraction of Remote Sensing Alteration Information and Delineation of Metallogenic Prospects in Tongshan Area,Heilongjiang Province

铜山地区斑岩型铜矿发育,成矿地质条件优越,但随着开采年限增加,矿山外围资源探测迫在眉睫,受植被发育、沼泽湿地密布影响,区内找矿工作受限。基于ETM遥感影像,通过MPH方法建立了铜山地区水体、地形阴影、植被等干扰信息掩膜,提取了铁染和羟基蚀变异常信息,圈定了环形构造和14个成矿远景区,为该区铜矿找矿工作提供了参考和借鉴。

Porphyry copper deposits were developed in Tongshan area,and the metallogenic geological conditions were superior.However,with the increase of mining life,it was extremely urgent to explore the resources around the mine,and the prospecting work in the area was restricted by vegetation development and dense swamps.Based on ETM remote sensing images,MPH method was used to establish interference information masks of water bodies,terrain shadow and vegetation in Tongshan area,extract iron staining and hydroxyl alteration anomaly information.The paper delineated circular structures and 14 metallogenic prospects,and provided reference for copper ore prospecting in this area.